from urllib import request
import re

class Spider():
    url = "https://www.panda.tv/all?pdt=1.18.pheader-n.1.18lutnga6up"
    root_patter = '<div class="video-info">([\s\S]*?)</div>'
    name_pattern = '</i>([\s\S]*?)</span>'
    number_pattern = '<span class="video-number">([\s\S]*?)</span>'

    def __fetch_content(self):
        r = request.urlopen(Spider.url)
        htmls = r.read()
        htmls = str(htmls,encoding='utf-8')
        return htmls

    def __analysis(self,htmls):
        root_html = re.findall(Spider.root_patter,htmls)
        anchors = []
        for html in root_html:
            name = re.findall(Spider.name_pattern,html)
            number = re.findall(Spider.number_pattern,html)
            anchor = {'name':name,'number':number}
            anchors.append(anchor)
        return anchors

    def __refine(self,anchors):
        l = lambda anchor: {
            'name':anchor['name'][0].strip(),
            'number':anchor['number'][0]
        }
        return map(l,anchors)

    def __sort(self,anchors):
        #filter

        anchors = sorted(anchors,key=self.__sort_seed,reverse=True)
        return anchors

    def __sort_seed(self ,anchor):
        r = re.findall('\d*',anchor['number'])
        number = float(r[0])
        if '万' in anchor['number']:
            number *= 10000
        return number

    def __show (self,anchors):
        for rank in range(0,len(anchors)):
            print('rank '+str(rank+1)+': '+anchors[rank]['name']+'......'+anchors[rank]['number'])


    def go(self):
        htmls = self.__fetch_content()
        anchors = self.__analysis(htmls)
        # print(anchors)
        anchors = list(self.__refine(anchors))
        anchors = self.__sort(anchors)
        self.__show(anchors)

    

spider = Spider()
spider.go()
